Method and apparatus for surface-treating workpieces

Details Method and apparatus for surface-treating workpieces Method and apparatus for surface-treating workpieces

1985-04-03

1987-02-24

Shaw, Clifford C.

Electric heating

Metal heating

For deposition welding

118 501, 118623, 118625, 219 7616, 427 37, B23K 904

Patent

active

046458956

ABSTRACT:
A method of surface-treating a workpiece is described characterized in aping one or more short-duration electrical pulses to produce, for each pulse, a high amplitude short-duration electrical discharge between the workpiece, serving as an anode, and another material serving as a cathode, while the workpiece and cathode are in a vacuum ambient. The workpiece and cathode are spaced from each other by a gap which is less than the smallest dimension of the cathode in the plane therethrough parallel to the workpiece.

REFERENCES:
patent: 1162149 (1915-11-01), Eckhardt
patent: 3461268 (1969-08-01), Inoue

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